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Hi everybody, I have a couple questions regarding ALE adaptive meshing. I was experiencing excessive distortion during my Abaqus analysis causing the job to abort. I was under the impression that using ALE adaptive meshing would be able to prevent this distortion from occurring. However, when...

Hi all, I am currently doing an impact simulation of a human skull and a rigid planar shell surface i.e. 'floor'. However I am getting an error message part way through the job. "The ratio of deformation speed to wave speed exceeds 1.0000 in at least one element. This usually indicates an...

Hi all, I am simulation a drop test. I am wondering if there is a way to find the location/position of a node or the centre of mass of a model with respect to a global coordinate system wrt time? I am hoping I can use this to find angular acceleration. Thanks

Hi all , I am quite new to abaqus and am wondering when applying a gravitational force to a falling object in the z direction would the force be -1 , as in -1g, or -9.81? Or because my model is in mm -9810? Thanks

Hi all, I was wondering if anyone could suggest a method for calculating the angular and linear acceleration from a hollow part during a drop test. I have attempted creating a set of the whole object to no avail. Is there a way to history output directly from the centre of mass? I have tried...

Hi all, Is it possible to create a datum point at the centre of mass of an object? I am looking to find the acceleration of an object during impact from the centre of mass. I thought creating a datum at the centre of mass then creating a history output at that point would be the best way to...

Hi all, I currently have 2 parts - 2 halves of a cycling helmet - that I need to make into one combined part. Is this possible? I have tried instancing the parts and merging them together. However this only allows me to merge them as a mesh. As this model needs to be exported to Simpleware to...

Hi all, I am looking to create a thin layer of multiple wires/thin metal strips. At first I would assume to do this one part would be created then using the linear pattern tool in the assembly to multiply the part. However I can only assume this would increase the computational demand far too...

Hi all, Is it possible to report maximum stress (V. Mises) for a particular surface as opposed to the maximum stress for the entire model? For my model I have an applied pressure to the top of a knee implant. I need to find the maximum stress for the entire model, which have been obtained, and...

Hi all, Is it possible to report maximum stress (V. Mises) for a particular surface as opposed to the maximum stress for the entire model? For my model I have an applied pressure to the top of a knee implant. I need to find the maximum stress for the entire model, which have been obtained, and...

Hi all, I am looking for the best method of modifying a solid structure on ABAQUS. Currently I have a model of a knee implant but I wish to implant a sensor/wire within the structure of the model as if it had been integrated during the casting process or such like. Would it be better to create...

Hi, I am making a model of a knee implant. I have applied a 8000N pressure load to the tibial surface. After a while the analysis aborts and I get the error message Time increment required is less than the minimum specified This is the last part of the message file ***NOTE: THE RATE OF...

Hi all, does anyone have a finite element model, either Solidworks or ABAQUS, of a knee replacement implant? I need an existing model for a study involving stresses applied to the knee Thanks

Hi all, does anyone have a finite element model, either Solidworks or ABAQUS, of a tibial knee implant? I need an existing model for a study involving stresses applied to the knee Thanks

Hi all, I am a relative newbie using the ABAQUS program and was wondering the best method for obtaining an acceleration output from the centre of mass of a model. At the moment I am having to run the job and find the centre of mass from there before going back to history output from the...

Hi all, It might seem like a novice question but is there a quick way to duplicate or clone parts. As I am trying to model artificial turf and for the rubber crumb infill I am wondering if it will be easier to just model it as a solid rubber layer or if there is an easy way to multiply the...

Hi everyone I am relatively new to abaqus and am trying to simulate a headform drop test onto firstly an unyielding surface and later a variety of third generation turf systems. Would anyone be able to suggest the best way to obtain acceleration outputs from the centre of gravity of the...