Stress-strain curves represents a soft and weak material, Civil Engineering

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Which of the following stress-strain curves represents a soft and weak material?

 

911_stress-strain curves represents a soft and weak material.png

Solution: As depicted, stress is on the y-axis while the x-axis represents strain.When "a" is compared to "b", the stress is less.  Comparatively, both c and d are characteristically brittle and fail relatively quickly when stress is applied (for example, concrete). 

answer is “a” --- “soft and weak”.

 


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