1.4.30 - Stress-strain graphs and breaking stress

Be able to draw and interpret tensile or compressive stress-strain graphs, and understand the term breaking stress.

Use - stress-strain graphs and breaking stress to connect the rule to the data and decision in the question.

This matters because - stress-strain graphs and breaking stress determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - stress-strain graphs and breaking stress to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Stress-strain graphs and breaking stress is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.