R2D2, RAX2 RB2D2, RB3D2 # 30.4 Capacitance elements • “Point capacitance,” Section 30.4.1 • “Capacitance element library,” Section 30.4.2 # 30.4.1 POINT CAPACITANCE Products: Abaqus/Standard Abaqus/Explicit Abaqus/CAE # References • “Capacitance element library,” Section 30.4.2 • \*HEATCAP • “Defining heat capacitance,” Section 33.5 of the Abaqus/CAE User’s Guide, in the HTML version of this guide # Overview Capacitance elements: • allow the introduction of concentrated heat capacitance at a point; • are associated with the temperature degree of freedom at a node; and • have a capacitance that can be specified as a function of temperature and/or field variables. # Defining the capacitance value The heat capacitance is associated with the temperature degree of freedom at the node of the element. You specify the capacitance magnitude, (density × specific heat × volume). Specify capacitance, not specific heat. You must associate this capacitance with a region of your model. Input File Usage: \*HEATCAP, ELSET=name pcV where the ELSET parameter refers to a set of HEATCAP elements. Abaqus/CAE Usage: Property or Interaction module: Special→Inertia→Create: Heat capacitance: select points: Capacitance # 30.4.2 CAPACITANCE ELEMENT LIBRARY Products: Abaqus/Standard Abaqus/Explicit Abaqus/CAE # References • “Point capacitance,” Section 30.4.1 • \*HEATCAP # Overview This section provides a reference to the capacitance elements available in Abaqus/Standard and Abaqus/Explicit. # Element type HEATCAP Point heat capacitance Active degree of freedom 11 # Nodal coordinates required X, Y, Z # Element property definition Input File Usage: \*HEATCAP Abaqus/CAE Usage: Property or Interaction module: Special→Inertia→Create: Heat capacitance # Element-based loading None. # Element output # Nodes associated with the element 1 node. # 31. Connector Elements Connector elements 31.1 Connector element behavior 31.2