Approach: First find the strain in the part, ea#39;, at the end of l year (8800 hours) under the 200 psi stress. The strain capacity at the viscoelastic limit is assumed constant at evm = 0.0220 in./in. for this PE material (See Section 3.3; Strain at the anbsp;...
|Title||:||Structural plastics design manual|
|Author||:||Simpson, Gumpertz & Heger, United States. Urban Mass Transportation Administration, United States. Federal Highway Administration, United States. Dept. of Housing and Urban Development, American Society of Civil Engineers|