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Stress analysis for structural integrity

The study of the control and monitoring methods has advanced considerably, using mainly techniques capable of determining the damage stage that a structural component finds itself in. The application of these different techniques is called structural integrity evaluation, which is becoming increasingly important due to the need to guarantee the operational safety of equipment / structures and quantify the risk associated to the maintenance of these components.

The loss of functionality of a structural component can lead to accidents that will result in material damage or human injuries and may cause considerable environmental impact. However, it is always important to stress that, even in normal operational conditions, equipment is subject to progressive damage, making a periodic assessment of its structural integrity a necessity.

From these actions of inspection and degradation control, it is possible to establish the operational safety level as well as to serve as a subsidy for the decision making related to the monitoring, repair and even replacement of the component. Besides, it becomes possible to reduce safety coefficients or extend the service life of equipment / structures, allowing significant economic gains.



The stress analysis is one of the main engineering disciplines related to the structural integrity assessment. The stress analysis can be done via analytical, experimental and numerical methods, allowing the determination of the stresses in critical regions of the component. Símeros’ team has a broad experience in stress analysis using numerical methods such as finite element analysis, which allows an extremely accurate and fast assessment of the studied component, identifying the critical points and the real source of the problems that may be occurring. In addition, it is possible to calibrate and validate these numerical models through in-situ experimental stress analysis, using different optical, electrical and mechanical sensors to instrument different equipment and structures. Both these different techniques guarantees the robustness and reliability of the analysis, resulting, in the end, in a greater operational safety for the client.