4-in 



plate 



specimer 



^ 1/2-in 



. plate specimen 



























Notes: 



1. Temperature — 70 to 72°F 



2. Loading rate — ^1,000 psi/min 



3. Specimen dimension — L/D = 4 

 i I i I i 



01234567891 



_9 



Strain (in. /in. x 10 ) 



Figure 14a. Strain-versus-stress relationship for grade G Plexiglas 

 acrylic plastic under uniaxial compression. 



Notes: 



1. Temperature — 70 to 72°F 



2. Loading rate — =» 1 ,000 psi/min 



3. Specimen dimension — L/D = 4 



I 100 200 300 400 ! 



Secant Modulus of Elasticity (psi x 10 ) 



Figure 14b. Secant modulus of elasticity for grade G Plexiglas 

 acrylic plastic under uniaxial compression. 



Tangent Modulus of Elasticity (psi x 10 ) 



Figure 14c. Tangent modulus of elasticity versus stress for grade G 

 Plexiglas acrylic plastic under uniaxial compression. 



4-in. plate specimen 



Notes: 



1. Temperature — 70 to 72°F 



2. Loading rate — * 1 ,000 psi/min 



3. Specimen dimension — L/D = 4 



0.2 0.4 0.6 



Poisson's Ratio 



Figure 14d. Poisson's ratio versus stress for grade G Plexiglas 

 acrylic plastic under uniaxial compression. 



35 



