Nano-indentation tests on partially satured argillite: Experimental device and measurements

机译：对部分饱和的硅藻土的纳米压痕测试：实验装置和测量

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Callovo-Oxfordian argillite from the underground laboratory ofANDRA (Meuse/Haute-Marne,rnFrance) corresponds to a multiphase material. This material is highly influenced by fluids as already shown byrnmany mechanical tests under different variable hygrometry. Indeed, argillite is made of a clayey matrix withrnquartz and carbonates inclusions. The present study was devoted to the development of an experimental devicernof nanoindentation under variable hygrometry. An experimental methodology for nanoindentation, allowing therndetermination of micromechanical properties of the different phases under variable hygrometry was proposed.Arnprocess for samples preparationwas established.Aparametric study taking into account the axial loading rate, thernpenetration depth of the indenter tip and the distance between two indentation points was performed for differentrnhydrous conditions. This allows an objective comparison of results. Many measurements were performed underrna hygrometry of 50% and 95% and a constant temperature of 20℃.

机译：来自安德拉省地下实验室（法国默兹/上马恩省）的Callovo-Oxfordian泥质岩对应于一种多相材料。如许多机械测试在不同的可变湿度下所显示的，这种材料受流体的影响很大。的确，硅藻土是由粘土基体制成的，具有石英和碳酸盐夹杂物。本研究致力于可变湿度法下实验装置的纳米压痕的发展。提出了一种纳米压痕的实验方法，该方法允许在可变湿度法下确定不同相的微机械性能。建立了制备样品的过程。考虑轴向载荷率，压头尖端的穿透深度以及两个压痕点之间的距离的参数化研究在不同的含水条件下进行。这样可以客观比较结果。在50％和95％的湿度下以及20℃的恒温下进行了许多测量。

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《Rock mechanics for resources, energy and environment》|2013年|201-205|共5页
会议地点 Wroclaw(PL)
作者
C. Auvray; R. Giot; D. Grgic;
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GéoRessources, UMR 7359, Université de Lorraine, CREGU, Vandoeuvre les Nancy, France;

GéoRessources, UMR 7359, Université de Lorraine, CREGU, Vandoeuvre les Nancy, France;

GéoRessources, UMR 7359, Université de Lorraine, CREGU, Vandoeuvre les Nancy, France;

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Nano-indentation tests on partially satured argillite: Experimental device and measurements

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