The instrumented indentation method, based on the digital recording of the parameters of the entire process of continuous local deformation of the material by an indenter, provides more complete and accurate information about the material’s behavior under load. Obtaining such information without compromising the integrity of a critical structure during operation increases its value. Therefore, more and more attention has recently been paid to portable installations and devices that use the instrumented indentation method. To date, no such equipment is manufactured in Ukraine. Therefore, there is a need to develop portable equipment for conducting such tests in the field under various modes of static and cyclic loading in the macro range of forces. The paper describes an updated portable installation PIIT-02M for determining the strength characteristics of structural elements in service by instrumented indentation, which was developed following the requirements of ISO 14577 and is intended for testing at the macro level. The system of fastening the portable installation on the test object was updated from mechanical (hooks and chains) to electromagnetic. This made it possible to conduct tests on pipes and flat surfaces, including sheet materials and structures made of them, significantly increasing the test efficiency and expanding the range of applications. Comparative tests on a 12 mm thick structural carbon 20 steel plate using the previous mechanical fastening system and the new electromagnetic one showed that the indentation diagrams obtained overlap well. Based on the results of tests of high-strength steels, the portable installation PIIT-02M allows one under both laboratory and operating conditions to record the process of indentation of the indenter into specimens of structural materials with high accuracy and, accordingly, to determine their mechanical characteristics by instrumented indentation.

仪器化压痕方法基于压头对材料连续局部变形全过程参数的数字化记录，提供了有关材料在载荷作用下行为的更完整、更准确的信息。在操作过程中获取此类信息而不损害关键结构的完整性可以增加其价值。因此，最近越来越多的关注使用仪器化压痕方法的便携式装置和设备。迄今为止，乌克兰还没有生产此类设备。因此，需要开发便携式设备，用于在宏观力范围内的各种静态和循环加载模式下进行现场测试。本文介绍了一种更新的便携式装置 PIIT-02M，用于通过仪器压痕确定使用中的结构元件的强度特性，该装置是根据 ISO 14577 的要求开发的，旨在用于宏观层面的测试。将便携式装置固定在测试对象上的系统从机械（钩和链）更新为电磁。这使得可以对管道和平面（包括板材及其制成的结构）进行测试，显着提高了测试效率并扩大了应用范围。使用先前的机械紧固系统和新的电磁紧固系统在12毫米厚的碳20结构钢板上进行的对比测试表明，压痕图获得了良好的重叠。根据高强度钢的测试结果，便携式装置 PIIT-02M 允许在实验室和操作条件下高精度记录压头压入结构材料样本的过程，并据此确定其通过仪器压痕测量机械特性。