How to Fix Errors in Abaqus by Modifying the Step and Increments for Beginners: Part 3

Too many attempts" and "Time increment required is less than the specified time” are two common errors in Abaqus. These are mostly caused due to making mistakes in creating steps. Abaqus provides various steps such as heat transfer, general static, explicit, and implicit dynamic steps. These define the type of the simulation, and each required different details to define. The Abaqus requires dividing each step into multiple increments to solve the model. The software gives you the option to control the size of the increment and making mistake leads to an error during the simulation process. To avoid these problems, you need to understand the concept of incrementation and step time. Here we first explain the initial, minimum, maximum, maximum number of increments, and max. allowable temperature change per increment. Then we will explain the common mistake in heat transfer and mechanical model by showing 5 examples. We go over each example and check the problem then we try to solve them by editing the step details.

The tutorial video:

This video explains the common error called "too many attempts" and "Time increment required is less than the specified time" in Abaqus for beginners. If you feel you need to know more about the process of solving and modeling in Abaqus. please watch the following video:

If you are interested to know how you can change the step settings to modify the incrementation please watch the following link:

This is the third episode and if you are looking for the first one please check the following link:

The recorded video is about 10 minutes and helps you to learn how to detect and fix the errors.

The video content is as follows:
0:00 Intro
1:02 Time period
1:44 Initial increment
2:42 Minimum increment in step
3:34 Maximum increment in step
4:34 Maximum number of increment
5:24 Explananin the thermal model
7:08 Fixing Too many attempts because of initial increment
10:43 Max. allowable temperature change per increment
13:34 Error due to maximum number of increment
14:47 Explananin the mechanical model
16:21 Time incerement required is less than the minimum specified
18:47 Too many increments needed to complete the step
20:09 Ending

To download the product please use the following link:
Or visit our website:

Abaqus:
Abaqus is a friendly user software to solve the finite element method models. The software covers a large variety of models by providing many options to users. To simplify the modelling process, it uses many predefined parameters to help the engineers to save time on the modelling process. However, depending on the model each might require different parameters and skipping them leads to creating errors in simulation. As a result, in Abaqus, you might face many errors which some are easy to solve, and some are difficult. The most comment errors are the “Too many attempts” and “Time increment required is less than the specified time”.

Where you can find the type of error:

Where you can find the type of error: You can find the errors from the message file or STL file in the Abaqus job directory. The easiest way to find the error is from the monitor section in the job manager. From the incrementation, for the "Too many attempts" error you could see that the last 5 of them were reduced. For the “Time increment required is less than the specified time” error you could see the last increment size is smaller than the defined increment in your step. There is also a comment in the report that also explains the error to you.

These two errors might appear for many reasons which make them very common to appear. These errors explain the solver tried to solve the simulation but due to some mistake in the model, it aborted the process. The errors might happen cause of mistakes in, any module such as material properties, step, load, and mesh.

[mani]

It was a pleasure to learn from your tutorials. Thank you very much !😇

[forge]

Hello, I am trying to make an dynamic implicit analysis however I get an error "the executable standard.exe aborted with system error code 1073741795". I am trying to use a predefined stress from a previous analysis which is done by dynamic explicit analysis.

However, if I do same analysis with dynamic explicit solver completely, it works.

can anyone have any suggestıon?

[dassenorita]

Sir when I am giving load in Newton it got aborted and gives error that time required is less than the minimum specified but when I provide load in kn it works.plz help sir..plz 🙏reply

[kassahundtola]

A very helpful content. Can you please provide the DFXLUX subroutine you used. Thanks in advance

[mekdesdebir]

how to solve an error saying 'the system matrix has negative eigen values'.

[abhimuliya]

"Abaqus/CAE kernel exited with an error, how to resolve", this message shows after installation when I open Abaqus 2023 first time in my Windows 11 Laptop

[kiran-jhze]

when test is conducted for 10 seconds experimentally, why does simulation wont finish in
10 seconds

[DineshKumar-vddh]

Hi, thanks for such an informative video. Can u plz do a video on UMESHSUBROUTINE for wear simulation.

[ameliam]

Hello, how do we solve if the error shows node set not defined

[yigajmj]

Keyword cards for step dependent input must appear after the first step card error in abaqus
How do i solve that error

[MultiSaded]

Please, in Abaqus 2021, how to fix this error: Error in job Job-1: THE ANALYSIS MAY NEED A LARGE NUMBER OF INCREMENTS (MORE THAN 20, 000, 000), AND IT MAY BE AFFECTED BY ROUND-OFF ERRORS. FOR ACCURACY, RUNNING DOUBLE PRECISION EXECUTABLE IS REQUIRED.
Job Job-1: Abaqus/Explicit aborted due to errors.

[RAVIPRAKASH-up]

Plz suggest to me the solution for this problem- Error in job Job-1: ELEMENT 771 INSTANCE PART-1-1 CANNOT BE ADDED USING *MODEL CHANGE IF IT IS NOT REMOVED OR INACTIVE IN THE PREVIOUS STEP

[omarbensaid]

how about this problem ""Excessive distortion at a total of 110 integration points in solid (continuum) elements"" ??

[hitman]

I am doing impact analysis on composite material plate using explicit dynamics but I am getting error as excessive incremental rotational of elements error
I have set time period as 0.0003 sec for analysis

[saadulhaq]

hOW TO RESOLVE "VALUE FOR PARAMETER NSET CANNOT BE MORE THAN 80 CHARACTERS