The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis
The determination of the dynamic response of titanium alloys is vital for aerospace industrial applications. The present research investigates the effect of strain history and temperature on the dynamic strain localization in Ti-6Al-4V grade-5 alloy. The experimental campaign was conducted using a S...
| Main Authors: | , , , |
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| Format: | Conference item |
| Language: | English |
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EDP Sciences
2021
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| _version_ | 1797103438148927488 |
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| author | Gour, G Thomson, D Reed, J Petrinic, N |
| author_facet | Gour, G Thomson, D Reed, J Petrinic, N |
| author_sort | Gour, G |
| collection | OXFORD |
| description | The determination of the dynamic response of titanium alloys is vital for aerospace industrial applications. The present research investigates the effect of strain history and temperature on the dynamic strain localization in Ti-6Al-4V grade-5 alloy. The experimental campaign was conducted using a Split Hopkinson Tensile Bar (SHTB) equipped with an ultra-highspeed camera. The characterization of the material is highly affected once necking occurs. The true dynamic response is compared for various loading conditions. Furthermore, in order to provide insights about on the local dynamic behavior, a numerical model is established using LSDYNAExplicit solver for monotonic loading conditions. Different constitutive material models are compared, including the phenomenological material model Johnson-Cook, and physically based model, Modified BammanChiesa-Johnson (BCJ). |
| first_indexed | 2024-03-07T06:20:06Z |
| format | Conference item |
| id | oxford-uuid:f27070f3-3622-4811-8297-9eef8880262a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:20:06Z |
| publishDate | 2021 |
| publisher | EDP Sciences |
| record_format | dspace |
| spelling | oxford-uuid:f27070f3-3622-4811-8297-9eef8880262a2022-03-27T12:03:47ZThe effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysisConference itemhttp://purl.org/coar/resource_type/c_5794uuid:f27070f3-3622-4811-8297-9eef8880262aEnglishSymplectic ElementsEDP Sciences2021Gour, GThomson, DReed, JPetrinic, NThe determination of the dynamic response of titanium alloys is vital for aerospace industrial applications. The present research investigates the effect of strain history and temperature on the dynamic strain localization in Ti-6Al-4V grade-5 alloy. The experimental campaign was conducted using a Split Hopkinson Tensile Bar (SHTB) equipped with an ultra-highspeed camera. The characterization of the material is highly affected once necking occurs. The true dynamic response is compared for various loading conditions. Furthermore, in order to provide insights about on the local dynamic behavior, a numerical model is established using LSDYNAExplicit solver for monotonic loading conditions. Different constitutive material models are compared, including the phenomenological material model Johnson-Cook, and physically based model, Modified BammanChiesa-Johnson (BCJ). |
| spellingShingle | Gour, G Thomson, D Reed, J Petrinic, N The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis |
| title | The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis |
| title_full | The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis |
| title_fullStr | The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis |
| title_full_unstemmed | The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis |
| title_short | The effect of strain history on dynamic necking in titanium alloys, experimental and numerical analysis |
| title_sort | effect of strain history on dynamic necking in titanium alloys experimental and numerical analysis |
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