Cody

Problem 8052. Stress-Strain Properties - 5

Solution 609634

Submitted on 1 Apr 2015 by Ritwik Rudra
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Test Suite

Test Status Code Input and Output
1   Pass
%% Note % The following properties are measured at room temperature and are tensile % in a single direction. Some materials, such as metals are generally % isotropic, whereas others, like composite are highly anisotropic % (different properties in different directions). Also, property values can % range depending on the material grade. Finally, thermal or environmental % changes can alter these properties, sometimes drastically.

2   Pass
%% steel alloy (ASTM A36) S_y = 250e6; %Pa S_u = 400e6; %Pa e_y = 0.00125; e_u = 0.35; nu = 0.26; G = 79.3e9; %Pa E = 200e9; %Pa density = 7.85; %g/cm^3 sh_exp = 0.14; %strain-hardening exponent sh_coeff = 0.463; %strain-hardening coefficient EtWR_corr = 2.548e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.5478e+10

3   Pass
%% titanium (Ti-6Al-4V) S_y = 830e6; %Pa S_u = 900e6; %Pa e_y = 0.00728; e_u = 0.14; nu = 0.342; G = 44e9; %Pa E = 114e9; %Pa density = 4.51; %g/cm^3 sh_exp = 0.04; %strain-hardening exponent sh_coeff = 0.974; %strain-hardening coefficient EtWR_corr = 2.528e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.5277e+10

4   Pass
%% Inconel 718 S_y = 1172e6; %Pa S_u = 1407e6; %Pa e_y = 0.00563; e_u = 0.027; nu = 0.29; G = 11.6e9; %Pa E = 208e9; %Pa density = 8.19; %g/cm^3 sh_exp = 0.075; %strain-hardening exponent sh_coeff = 1.845; %strain-hardening coefficient EtWR_corr = 2.540e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.5397e+10

5   Pass
%% aluminum alloy (6061-T6)%^& S_y = 241e6; %Pa S_u = 300e6; %Pa e_y = 0.0035; e_u = 0.15; nu = 0.33; G = 26e9; %Pa E = 68.9e9; %Pa density = 2.7; %g/cm^3 sh_exp = 0.042; %strain-hardening exponent sh_coeff = 0.325; %strain-hardening coefficient EtWR_corr = 2.552e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.5519e+10

6   Pass
%% copper S_y = 70e6; %Pa S_u = 220e6; %Pa e_y = 0.00054; e_u = 0.48; nu = 0.34; G = 48e9; %Pa E = 130e9; %Pa density = 8.92; %g/cm^3 sh_exp = 0.44; %strain-hardening exponent sh_coeff = 0.304; %strain-hardening coefficient EtWR_corr = 1.457e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 1.4574e+10

7   Pass
%% rhenium S_y = 317e6; %Pa S_u = 1130e6; %Pa e_y = 0.000685; e_u = 0.24; nu = 0.3; G = 178e9; %Pa E = 463e9; %Pa density = 21.02; %g/cm^3 sh_exp = 0.353; %strain-hardening exponent sh_coeff = 1.870; %strain-hardening coefficient EtWR_corr = 2.203e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.2027e+10

8   Pass
%% polymer (nylon, 6/6) S_y = 82e6; %Pa S_u = 82e6; %Pa e_y = 0.0265; e_u = 0.45; nu = 0.41; G = 2.8e9; %Pa E = 3.1e9; %Pa density = 1.14; %g/cm^3 EtWR_corr = 0.272e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.7193e+09

9   Pass
%% polymer (nylon, 6/6) reinforced with 45wt.% glass fiber S_y = 230e6; %Pa S_u = 230e6; %Pa e_y = 0.016; e_u = 0.016; nu = 0.35; G = 13.0e9; %Pa E = 14.5e9; %Pa density = 1.51; %g/cm^3 EtWR_corr = 0.960e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 9.6026e+09

10   Pass
%% diamond S_y = 1200e6; %Pa S_u = 1200e6; %Pa e_y = 0.001; e_u = 0.001; nu = 0.20; G = 478e9; %Pa E = 1200e9; %Pa density = 3.51; %g/cm^3 EtWR_corr = 34.19e10; assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 3.4188e+11

11   Pass
%% ind = randi(4); switch ind case 1 E = 114e9; %Pa density = 4.51; %g/cm^3 EtWR_corr = 2.528e10; case 2 E = 68.9e9; %Pa density = 2.7; %g/cm^3 EtWR_corr = 2.552e10; case 3 E = 200e9; %Pa density = 7.85; %g/cm^3 EtWR_corr = 2.548e10; case 4 E = 1200e9; %Pa density = 3.51; %g/cm^3 EtWR_corr = 34.19e10; end assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 3.4188e+11

12   Pass
%% ind = randi(4); switch ind case 1 E = 68.9e9; %Pa density = 2.7; %g/cm^3 EtWR_corr = 2.552e10; case 2 E = 3.1e9; %Pa density = 1.14; %g/cm^3 EtWR_corr = 0.272e10; case 3 E = 14.5e9; %Pa density = 1.51; %g/cm^3 EtWR_corr = 0.960e10; case 4 E = 208e9; %Pa density = 8.19; %g/cm^3 EtWR_corr = 2.540e10; end assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.7193e+09

13   Pass
%% ind = randi(4); switch ind case 1 E = 208e9; %Pa density = 8.19; %g/cm^3 EtWR_corr = 2.540e10; case 2 E = 463e9; %Pa density = 21.02; %g/cm^3 EtWR_corr = 2.203e10; case 3 E = 130e9; %Pa density = 8.92; %g/cm^3 EtWR_corr = 1.457e10; case 4 E = 3.1e9; %Pa density = 1.14; %g/cm^3 EtWR_corr = 0.272e10; end assert(abs(stress_strain5(E,density)-EtWR_corr)/EtWR_corr<1e-2)

ans = 2.5397e+10

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