THE CHOICES ARE IN BULLET FORM At a temperature of 15˚C, a precast wall made of low-strength concrete just fits between

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answerhappygod
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THE CHOICES ARE IN BULLET FORM At a temperature of 15˚C, a precast wall made of low-strength concrete just fits between

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THE CHOICES ARE IN BULLET FORM
At a temperature of 15˚C, a precast wall made of low-strength
concrete just fits between two rigid supports. Its length L = 4 m,
height h = 1 m, and width w = 8 cm. The coefficient of linear
expansion is 10.8 x 10^–6/˚C and the modulus of expansion is 200
GPa.
a)Find the thermal deformation developed in this wall if the
temperature rises to 50˚C
b)Find the stress developed in this wall if the temperature
rises to 45˚C.
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