Strength and failure of a damaged material
Abstract
Under complex, dynamic loading conditions, damage can occur within a material. Should this damage not lead to catastrophic failure, the material can continue to sustain further loading. But, little is understood about how to represent the mechanical response of a material that has experienced dynamic loading leading to incipient damage. We examine this effect in copper. Copper is shock loaded to impart an incipient state of damage to the material. Thereafter compression and tensile specimens were sectioned from the dynamically damaged specimen to quantify the subsequent properties of the material in the region of intense incipient damage and in regions far from the damage. Finally, we observed that enhanced yield stresses result from the damaged material even over material, which has simply been shock loaded and not damaged. These results are rationalized in terms of stored plastic work due to the damage process.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1329587
- Report Number(s):
- LA-UR-15-22064
Journal ID: ISSN 2100-014X
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- EPJ Web of Conferences
- Additional Journal Information:
- Journal Volume: 94; Conference: DYMAT ; 2015-09-07 - 2015-09-11 ; Lugano, Switzerland; Journal ID: ISSN 2100-014X
- Publisher:
- EDP Sciences
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Cerreta, Ellen K., Gray III, George T., Trujillo, Carl P., Potocki, Mark L., Vachhani, Shraddha, Martinez, Daniel T., and Lovato, Manual L. Strength and failure of a damaged material. United States: N. p., 2015.
Web. doi:10.1051/epjconf/20159402015.
Cerreta, Ellen K., Gray III, George T., Trujillo, Carl P., Potocki, Mark L., Vachhani, Shraddha, Martinez, Daniel T., & Lovato, Manual L. Strength and failure of a damaged material. United States. https://doi.org/10.1051/epjconf/20159402015
Cerreta, Ellen K., Gray III, George T., Trujillo, Carl P., Potocki, Mark L., Vachhani, Shraddha, Martinez, Daniel T., and Lovato, Manual L. Mon .
"Strength and failure of a damaged material". United States. https://doi.org/10.1051/epjconf/20159402015. https://www.osti.gov/servlets/purl/1329587.
@article{osti_1329587,
title = {Strength and failure of a damaged material},
author = {Cerreta, Ellen K. and Gray III, George T. and Trujillo, Carl P. and Potocki, Mark L. and Vachhani, Shraddha and Martinez, Daniel T. and Lovato, Manual L.},
abstractNote = {Under complex, dynamic loading conditions, damage can occur within a material. Should this damage not lead to catastrophic failure, the material can continue to sustain further loading. But, little is understood about how to represent the mechanical response of a material that has experienced dynamic loading leading to incipient damage. We examine this effect in copper. Copper is shock loaded to impart an incipient state of damage to the material. Thereafter compression and tensile specimens were sectioned from the dynamically damaged specimen to quantify the subsequent properties of the material in the region of intense incipient damage and in regions far from the damage. Finally, we observed that enhanced yield stresses result from the damaged material even over material, which has simply been shock loaded and not damaged. These results are rationalized in terms of stored plastic work due to the damage process.},
doi = {10.1051/epjconf/20159402015},
journal = {EPJ Web of Conferences},
number = ,
volume = 94,
place = {United States},
year = {Mon Sep 07 00:00:00 EDT 2015},
month = {Mon Sep 07 00:00:00 EDT 2015}
}
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