Axial Stress & StrainLoad over area, extension over length, and the modulus that links them.Mechanical EngineeringDirect stress is load over area, strain is extensionover original length, and E connects them.σ = P ÷ A · ε = δ ÷ L · δ = PL ÷ AE20 kN on 200 mm²σ = 100 MPa1 N/mm² = 1 MPa.Steel, E = 200 GPaε = 0.0005100 ÷ 200000.Bar 2 m longδ = 1.0 mmε times length.THE COMMON MISTAKE✗ Dividing by the deformed area✓ Engineering stress uses the original areaTrue stress uses the instantaneous area and keeps rising after necking. Designdata and codes are written in engineering stress.Valid below yield, for a prismatic member loaded along its axis with nobending or buckling.Axial Stress & Strainlearnposters.com
Axial Stress & Strain — printable engineering wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Axial Stress & Strain poster

The rule, 3 worked examples, and the mistake everyone makes.

Valid below yield, for a prismatic member loaded along its axis with no bending or buckling.

Questions about the Axial Stress & Strain poster

What’s on the Axial Stress & Strain poster?
The rule, 3 worked examples, and the mistake everyone makes. Direct stress is load over area, strain is extension over original length, and E conn…; σ = P ÷ A · ε = δ ÷ L · δ = PL ÷ AE; 20 kN on 200 mm² = σ = 100 MPa; Steel, E = 200 GPa = ε = 0.0005; Bar 2 m long = δ = 1.0 mm; Common mistake: Dividing by the deformed area → Engineering stress uses the original…. Valid below yield, for a prismatic member loaded along its axis with no bending or buckling.
Who is the Axial Stress & Strain poster for?
Axial Stress & Strain belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning mechanics of materials can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Axial Stress & Strain poster?
Any tie, bolt, strut or bar carrying load along its own axis. A wall chart earns its place by being glanceable from where the work is happening, so Axial Stress & Strain belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
What other posters go with Axial Stress & Strain?
Elastic Constants, Beam Bending Stress and Beam Deflection Cases sit alongside Axial Stress & Strain in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Elastic ConstantsBeam Bending StressBeam Deflection Cases
Is the Axial Stress & Strain poster free to download and print?
Yes. Axial Stress & Strain downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Axial Stress & Strain poster print at?
Axial Stress & Strain is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Axial Stress & Strain loses nothing.Printing guide

Related posters

Charts that sit alongside Axial Stress & Strain on the same wall.

Browse every Mechanical Engineering poster, or start from the full catalogue.