{"action":"opened","issue":{"url":"https://api.github.com/repos/fsgeek91/quick-fatigue-tool/issues/53","repository_url":"https://api.github.com/repos/fsgeek91/quick-fatigue-tool","labels_url":"https://api.github.com/repos/fsgeek91/quick-fatigue-tool/issues/53/labels{/name}","comments_url":"https://api.github.com/repos/fsgeek91/quick-fatigue-tool/issues/53/comments","events_url":"https://api.github.com/repos/fsgeek91/quick-fatigue-tool/issues/53/events","html_url":"https://github.com/fsgeek91/quick-fatigue-tool/issues/53","id":335902863,"node_id":"MDU6SXNzdWUzMzU5MDI4NjM=","number":53,"title":"The Brown-Miller algorithm produces non-zero mean strains for stress histories with zero mean stress","user":{"login":"fsgeek91","id":24232436,"node_id":"MDQ6VXNlcjI0MjMyNDM2","avatar_url":"https://avatars1.githubusercontent.com/u/24232436?v=4","gravatar_id":"","url":"https://api.github.com/users/fsgeek91","html_url":"https://github.com/fsgeek91","followers_url":"https://api.github.com/users/fsgeek91/followers","following_url":"https://api.github.com/users/fsgeek91/following{/other_user}","gists_url":"https://api.github.com/users/fsgeek91/gists{/gist_id}","starred_url":"https://api.github.com/users/fsgeek91/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/fsgeek91/subscriptions","organizations_url":"https://api.github.com/users/fsgeek91/orgs","repos_url":"https://api.github.com/users/fsgeek91/repos","events_url":"https://api.github.com/users/fsgeek91/events{/privacy}","received_events_url":"https://api.github.com/users/fsgeek91/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-06-26T16:35:38Z","updated_at":"2018-06-26T16:35:38Z","closed_at":null,"author_association":"OWNER","body":"The Brown-Miller algorithm produces non-zero mean strains for stress histories with zero mean stress. The reason is due to a technical limitation, whereby the principal stress are used by the plasticity correction. Therefore, a fully-reversed load can cause pulsating loads to appear in the principal stress history.\r\n\r\nThe code needs to be changed so that the principal stresses are not used for the plasticity correction.\r\n\r\nThis bug affects the following analysis algorithms:\r\n\r\n- Brown-Miller"}}
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