Design to absorb the kinetic energy from an impact

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A helmet has an open cell polystyrene foam liner that is design to absorb the kinetic energy from an impact. The Foam has a relative density of 10% and the young module of the solid polystyrene that the foam is 1.5Gpa. How much energy per volume in J/m^3, can the foam absorb if it is loaded in uni axial compression to uni axial compression to strain 80%, please assume that C1=1.0 and C2=0.05

Reference no: EM13843655

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Design to absorb the kinetic energy from an impact : A helmet has an open cell polystyrene foam liner that is design to absorb the kinetic energy from an impact. The Foam has a relative density of 10% and the young module of the solid polystyrene that the foam is 1.5Gpa. How much energy per volume in J..
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