A strain acceleration method to identify the onset of diffuse necking
This paper presents an innovative ‘strain acceleration method’ for determining the onset of diffuse necking in sheet forming tests using data obtained from digital image correlation (DIC). The method identifies the onset time of diffuse necking and provides the corresponding in-plane principal strai...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-11-01
|
| Series: | Advances in Industrial and Manufacturing Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666912924000138 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846169378261827584 |
|---|---|
| author | Rui F.V. Sampaio João P.M. Pragana Ivo M.F. Bragança Carlos M.A. Silva Paulo A.F. Martins |
| author_facet | Rui F.V. Sampaio João P.M. Pragana Ivo M.F. Bragança Carlos M.A. Silva Paulo A.F. Martins |
| author_sort | Rui F.V. Sampaio |
| collection | DOAJ |
| description | This paper presents an innovative ‘strain acceleration method’ for determining the onset of diffuse necking in sheet forming tests using data obtained from digital image correlation (DIC). The method identifies the onset time of diffuse necking and provides the corresponding in-plane principal strain values by detecting a local extreme in the second derivative of the minor principal in-plane strain with respect to time at the edges of the sheet surface region where diffuse necking occurs. Results obtained from applying the method to tensile testing on two different materials and comparisons with available methods based on force-time or principal strain rate evolutions confirm its accuracy and validity. The new method was implemented in a computer software to be used for research and education that also enables determination of localized necking and fracture and plotting the strain loading paths in principal strain space. |
| format | Article |
| id | doaj-art-ee43aab43b7349c7ac485625c3a75979 |
| institution | Kabale University |
| issn | 2666-9129 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Advances in Industrial and Manufacturing Engineering |
| spelling | doaj-art-ee43aab43b7349c7ac485625c3a759792024-11-13T04:30:30ZengElsevierAdvances in Industrial and Manufacturing Engineering2666-91292024-11-019100148A strain acceleration method to identify the onset of diffuse neckingRui F.V. Sampaio0João P.M. Pragana1Ivo M.F. Bragança2Carlos M.A. Silva3Paulo A.F. Martins4IDMEC, Instituto Superior Técnico, Universidade de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, Portugal; CIMOSM, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, Portugal; Corresponding author.This paper presents an innovative ‘strain acceleration method’ for determining the onset of diffuse necking in sheet forming tests using data obtained from digital image correlation (DIC). The method identifies the onset time of diffuse necking and provides the corresponding in-plane principal strain values by detecting a local extreme in the second derivative of the minor principal in-plane strain with respect to time at the edges of the sheet surface region where diffuse necking occurs. Results obtained from applying the method to tensile testing on two different materials and comparisons with available methods based on force-time or principal strain rate evolutions confirm its accuracy and validity. The new method was implemented in a computer software to be used for research and education that also enables determination of localized necking and fracture and plotting the strain loading paths in principal strain space.http://www.sciencedirect.com/science/article/pii/S2666912924000138Sheet formingDiffuse neckingExperimentationDigital image correlationSoftwareEducation |
| spellingShingle | Rui F.V. Sampaio João P.M. Pragana Ivo M.F. Bragança Carlos M.A. Silva Paulo A.F. Martins A strain acceleration method to identify the onset of diffuse necking Advances in Industrial and Manufacturing Engineering Sheet forming Diffuse necking Experimentation Digital image correlation Software Education |
| title | A strain acceleration method to identify the onset of diffuse necking |
| title_full | A strain acceleration method to identify the onset of diffuse necking |
| title_fullStr | A strain acceleration method to identify the onset of diffuse necking |
| title_full_unstemmed | A strain acceleration method to identify the onset of diffuse necking |
| title_short | A strain acceleration method to identify the onset of diffuse necking |
| title_sort | strain acceleration method to identify the onset of diffuse necking |
| topic | Sheet forming Diffuse necking Experimentation Digital image correlation Software Education |
| url | http://www.sciencedirect.com/science/article/pii/S2666912924000138 |
| work_keys_str_mv | AT ruifvsampaio astrainaccelerationmethodtoidentifytheonsetofdiffusenecking AT joaopmpragana astrainaccelerationmethodtoidentifytheonsetofdiffusenecking AT ivomfbraganca astrainaccelerationmethodtoidentifytheonsetofdiffusenecking AT carlosmasilva astrainaccelerationmethodtoidentifytheonsetofdiffusenecking AT pauloafmartins astrainaccelerationmethodtoidentifytheonsetofdiffusenecking AT ruifvsampaio strainaccelerationmethodtoidentifytheonsetofdiffusenecking AT joaopmpragana strainaccelerationmethodtoidentifytheonsetofdiffusenecking AT ivomfbraganca strainaccelerationmethodtoidentifytheonsetofdiffusenecking AT carlosmasilva strainaccelerationmethodtoidentifytheonsetofdiffusenecking AT pauloafmartins strainaccelerationmethodtoidentifytheonsetofdiffusenecking |