{"id":137419,"date":"2021-01-03T23:32:35","date_gmt":"2021-01-03T23:32:35","guid":{"rendered":"\/forum\/forums\/reply\/137419\/"},"modified":"2021-01-03T23:32:35","modified_gmt":"2021-01-03T23:32:35","slug":"137419","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/137419\/","title":{"rendered":"Reply To: Why doesn&#8217;t the load passes through max shear stress direction for ductile materials?"},"content":{"rendered":"<p>ArraynYour original question mentions load path. The load path in a tensile test specimen is from one end to the other in a straight line.  Failure begins with necking, which is when material starts sliding at 45 degrees to the load path, which is the direction of maximum shear stress. However, the final fracture is not at 45 degrees, but more straight across.n<img src=https:\/\/us.v-cdn.net\/6032193\/uploads\/J4Y8VSV9E5EH\/image.png width=741 height=542 \/><img src=https:\/\/us.v-cdn.net\/6032193\/uploads\/RNDZ87WLM16X\/image.png width=781 height=559 \/>We can simulate necking in ANSYS using a Plasticity material model to simulate the behavior of ductile materials.n<img src=https:\/\/us.v-cdn.net\/6032193\/uploads\/MFKI47ZMK0HV\/a359d16f-151f-4856-b5a4-a99c0047ad1a-necking-5b1-5d.jpg width=451 height=592 \/>The image I used in December labeled brittle fracture may have been from a torsion test, it was not specific.n<\/p>\n","protected":false},"template":"","class_list":["post-137419","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"ArraynYour original question mentions load path. The load path in a tensile test specimen is from one end to the other in a straight line. Failure begins with necking, which is when material starts sliding at 45 degrees to the load path, which is the direction of maximum shear stress. However, the final fracture is\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/137419\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Why doesn\u2019t the load passes through max shear stress direction for ductile materials? | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"ArraynYour original question mentions load path. The load path in a tensile test specimen is from one end to the other in a straight line. Failure begins with necking, which is when material starts sliding at 45 degrees to the load path, which is the direction of maximum shear stress. However, the final fracture is\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/137419\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-01-03T23:32:35+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-01-03T23:32:35+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Why doesn\u2019t the load passes through max shear stress direction for ductile materials? | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"ArraynYour original question mentions load path. The load path in a tensile test specimen is from one end to the other in a straight line. Failure begins with necking, which is when material starts sliding at 45 degrees to the load path, which is the direction of maximum shear stress. 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The load path in a tensile test specimen is from one end to the other in a straight line. Failure begins with necking, which is when material starts sliding at 45 degrees to the load path, which is the direction of maximum shear stress. 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