5.1.8 *EMBEDDED ELEMENT

Products: ABAQUS/Standard  ABAQUS/Explicit  

Elements tested

C3D8    C3D8R    C3D20   

CAX4    CAX4R    CAX8   

CPE4    CPE4R    CPE8   

SC6R    SC8R   

MAX1    MAX2    M3D4    M3D4R    M3D8   

SFMAX1    SFMAX2    SFM3D4    SFM3D4R    SFM3D8   

T2D2    T2D3    T3D2    T3D3   

Features tested

Various types of elements that lie embedded in different types of host elements are tested by using the *EMBEDDED ELEMENT option to constrain the embedded nodes to the appropriate host elements.

Problem description

The models using continuum elements as host elements consist of three host elements and, in most cases, two embedded elements of different types. The models using continuum shell elements as host elements consist of six or nine elements: three membrane elements lie embedded in a group of either three SC8R or six SC6R elements. All the nodes at one end (=1) are constrained in all degrees of freedom. Concentrated loads are applied in the negative -direction to the nodes at the other end (=10).

Results and discussion

The results obtained using the *EMBEDDED ELEMENT option are the same as those obtained using an equivalent MPC model.

Input files

ABAQUS/Standard input files

xembedele2d1_std.inp

Static step; a 2-D first-order truss element and a 2-D first-order solid element lie embedded in three 2-D first-order solid elements.

xembedele2d2_std.inp

Static step; a 2-D second-order truss element and a 2-D second-order solid element lie embedded in three 2-D second-order solid elements.

xembedelecax1_std.inp

Static step; an axisymmetric first-order membrane element with rebar and an axisymmetric first-order solid element lie embedded in three axisymmetric first-order solid elements.

xembedelecax2_std.inp

Static step; an axisymmetric second-order membrane element with rebar and an axisymmetric second-order solid element lie embedded in three axisymmetric second-order solid elements.

xembedelecax3_std.inp

Static step; an axisymmetric first-order surface element with rebar and an axisymmetric first-order solid element lie embedded in three axisymmetric first-order solid elements.

xembedelecax4_std.inp

Static step; an axisymmetric second-order surface element with rebar and an axisymmetric second-order solid element lie embedded in three axisymmetric second-order solid elements.

xembedele3d1_std.inp

Static step; a 3-D first-order membrane element with rebar and a 3-D first-order solid element lie embedded in three 3-D first-order solid elements.

xembedele3d2_std.inp

Static step; a 3-D second-order membrane element with rebar and a 3-D second-order solid element lie embedded in three 3-D second-order solid elements.

xembedele3d3_std.inp

Static step followed by frequency, steady-state dynamics, modal dynamics, response spectrum, random response, and dynamics steps; a 3-D first-order truss element and a 3-D first-order membrane element with rebar lie embedded in three 3-D first-order solid elements.

xembedele3d4_std.inp

Static step; a 3-D second-order truss element and a 3-D second-order membrane element with rebar lie embedded in three 3-D second-order solid elements.

xembedele3d5_std.inp

Static step; a 3-D first-order surface element with rebar and a 3-D first-order solid element lie embedded in three 3-D first-order solid elements.

xembedele3d6_std.inp

Static step; a 3-D second-order surface element with rebar and a 3-D second-order solid element lie embedded in three 3-D second-order solid elements.

xembedele3d7_std.inp

Static step followed by frequency, steady-state dynamics, modal dynamics, response spectrum, random response, and dynamics steps; a 3-D first-order truss element and a 3-D first-order surface element with rebar lie embedded in three 3-D first-order solid elements.

xembedele3d8_std.inp

Static step; a 3-D second-order truss element and a 3-D second-order surface element with rebar lie embedded in three 3-D second-order solid elements.

xembedele3d9_std.inp

Static step; a 3-D first-order surface element with rebar and a 3-D first-order solid element lie embedded in three 3-D first-order solid elements. The *MODEL CHANGE capability is applied to remove and add surface elements during the static analysis.

xembedele3d10_std.inp

Static step; three membrane elements with rebar lie embedded in three 8-node continuum shell elements.

xembedele3d11_std.inp

Static step; three membrane elements with rebar lie embedded in six 6-node continuum shell elements.

xembedele3d12_std.inp

Static step; first-order cylindrical surface elements with rebar lie embedded in first-order cylindrical solid elements.

xembedele3d13_std.inp

Static step; second-order cylindrical surface elements with rebar lie embedded in second-order cylindrical solid elements.

xembedele3d14_std.inp

Static step; shell elements with rebar and beam elements lie embedded in three 3-D first-order solid elements.

ABAQUS/Explicit input files

xembedele2d1_xpl.inp

A 2-D first-order truss element and a 2-D first-order solid element lie embedded in three 2-D first-order solid elements.

xembedelecax1_xpl.inp

An axisymmetric first-order solid element lies embedded in three axisymmetric first-order solid elements.

xembedele3d1_xpl.inp

A 3-D first-order membrane element with rebar and a 3-D first-order solid element lie embedded in three 3-D first-order solid elements.

xembedele3d3_xpl.inp

A 3-D first-order truss element and a 3-D first-order membrane element with rebar lie embedded in three 3-D first-order solid elements.

xembedele3d4_xpl.inp

A 3-D first-order surface element with rebar and a 3-D first-order solid element lie embedded in three 3-D first-order solid elements.

xembedele3d5_xpl.inp

Shell elements with rebar and beam elements lie embedded in three 3-D first-order solid elements.

Figure 5.1.8–1 Elements lie embedded in host elements.