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      <subfield code="a">Bermudo-Gamboa, Carolina</subfield>
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      <subfield code="a">Martín-Fernández, Francisco de Sales</subfield>
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      <subfield code="a">Sevilla-Hurtado, Lorenzo</subfield>
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      <subfield code="c">2015-07-28</subfield>
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      <subfield code="a">In previous studies based on indentation processes, the application of the Upper Bound&#xd;
Theorem (UBT) Modular Model by means of Triangular Rigid Zones (TRZ) has being analyzed.&#xd;
These studies were carried out with plane strain conditions and rigid-perfectly plastic material.&#xd;
One of the advantages of working with the modular procedure of the UBT, is the possibility of&#xd;
the introduction of the different parameters that take place in the process. This factors&#xd;
introduction allows the enrichment of the study, bringing the research nearest to the reality of&#xd;
the processes. Therefore, in order to approach the method to a real indentation process, the&#xd;
introduction and study of the material hardening is inevitable. Furthermore, thanks to the new&#xd;
incremental processes that are being developed, the indentation processes are becoming&#xd;
important in the current industry.</subfield>
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      <subfield code="a">http://hdl.handle.net/10630/10176</subfield>
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      <subfield code="a">Hardening study on the application of the Upper Bound Theorem in indentation processes by means of modules of Triangular Rigid Zones</subfield>
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