The theory of macro-micro two scale model obtains the micro plastic strains by using the macro-micro connecting factor. which is an effective theory to investigate the damage accumulation of the high fatigue and its failure mechanism. Based on the macro-micro theory. the evolution rule of the micro stresses and strains with plastic hardening was studied. https://www.markymarkscott.com/product-category/lavender-wax-with-chamomile/