This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- Understand that thermal strain (ε = αΔT) occurs with any temperature change, but thermal stress (σ = EαΔT) only develops if the object is constrained.

- Recognize that a temperature increase in a constrained member results in compressive stress, while a temperature decrease results in tensile stress.

- Be prepared to look up the Modulus of Elasticity (E) and the coefficient of thermal expansion (α) in the NCEES FE Reference Handbook.

- Watch out for distractor information in exam problems, such as the initial length of a member when only stress is required.

- Remember the key phrase: "No constraint, no stress" to avoid the common trap of calculating stress for a freely expanding object.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to apply the fundamental axial stress formula, σ = P/A, and avoid common unit conversion traps between ksi and psi.

- The critical difference between axial strain (ε = δ/L) and absolute deformation (δ), a frequent point of confusion on the exam.

- How to use Hooke's Law (σ = Eε) to derive and apply the essential deformation formula δ = PL/AE, using the mnemonic "PLEA".

- The concept and application of Poisson's Ratio (ν = -ε_lateral/ε_axial) to solve for changes in a member's cross-sectional dimensions.

- How to integrate these concepts to solve multi-step problems, such as finding the final diameter of a rod under axial load.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- The critical difference between mass moment of inertia (resistance to rotation) and area moment of inertia (resistance to bending).

- How to use NCEES Handbook formulas for common shapes like disks and rods and when to apply the Parallel Axis Theorem.

- The correct application of the Parallel Axis Theorem (I = Ic + Md²) for objects rotating about a non-centroidal axis.

- Calculating total kinetic energy for a rolling body by combining translational (½mv²) and rotational (½Iω²) components.

- Essential unit conversions to avoid exam traps, specifically converting pounds-force (lbf) to slugs and RPM to radians per second.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to calculate the natural circular frequency (ω_n), period (T), and frequency (f) for an undamped SDOF system.

- The critical importance of converting weight (lbf) to mass (slugs) and maintaining consistent units (USCS or SI).

- The definition of the damping ratio (ζ) as the ratio of actual damping to critical damping (c/c_c).

- How to classify a system as underdamped (ζ < 1), critically damped (ζ = 1), or overdamped (ζ > 1).

- To identify the oscillatory behavior of underdamped systems versus the non-oscillatory return of critically damped and overdamped systems.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to relate angular velocity (ω) and acceleration (α) to the linear motion of any point on a rigid body.

- The correct application of the rotational kinetics equation, ΣM = Iα, for problems involving pure rotation.

- The concept of the Instantaneous Center of Zero Velocity (ICZV) to dramatically simplify velocity analysis.

- How to identify and avoid common exam traps like unit conversions (RPM to rad/s) and sign conventions.

- The special case of rolling without slipping, where the contact point with the surface acts as the ICZV.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- The key differences between rectilinear (straight-line) and curvilinear (curved path) motion for the FE Civil exam.

- How to apply normal-tangential (n-t) coordinates to calculate acceleration for particles on a curved path.

- The crucial distinction between tangential acceleration (at), which changes speed, and normal acceleration (an), which changes direction.

- A common exam trap: recognizing that even with constant speed on a curve, the normal acceleration (v²/ρ) is non-zero.

- How to locate and use the correct particle kinematics equations in the Dynamics section of the NCEES FE Reference Handbook.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- To calculate composite centroids by treating removed sections as negative areas in the weighted average summation.

- The parallel axis theorem, I = Ic + Ad², is essential for finding the moment of inertia of composite shapes, where 'd' is the distance from the component's centroid to the overall composite centroid.

- That static friction is a variable force up to a maximum (μsN), while kinetic friction is a constant value (μkN) once motion begins.

- To always check if the applied force overcomes maximum static friction before applying the kinetic friction formula.

- In the belt friction formula, T2/T1 = e^(μβ), the wrap angle β must be converted from degrees to radians.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- The fundamental difference between a frame (a stationary structure) and a machine (a structure with moving parts).

- The primary analysis method for these structures: disassembling them at the pins and drawing a Free Body Diagram for each component.

- How to apply Newton's Third Law at pin connections, where interaction forces between members are equal and opposite.

- The critical shortcut of identifying a two-force member to simplify the direction of unknown forces.

- A common exam trap: incorrectly assuming a member is a two-force member when an intermediate load is applied.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- When to choose the Method of Joints versus the Method of Sections to save time on the FE Civil exam.

- The critical "two-unknown" limit for the Method of Joints and how to apply it by starting at the correct joint.

- How to use the Method of Sections by making a cut through a maximum of three members to find specific forces quickly.

- The importance of always calculating the external support reactions as the first step in any truss problem.

- How to identify zero-force members to simplify the problem before starting calculations.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.

In this episode you will learn:

- How to apply the three fundamental equations of equilibrium for 2D rigid bodies.

- The specific number of unknown reactions associated with pin, roller, and fixed supports.

- The method to classify a structure as statically determinate, indeterminate, or unstable by comparing reactions to equations.

- A critical exam strategy to solve for support reactions efficiently by summing moments about a pin support first.

- How to avoid a common exam trap involving roller supports on inclined surfaces.

For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep