However, these details are always subjected to repeated cyclic loads in practice, and fatigue cracks may develop and result in fatigue damage or failure.
Steel, concrete and composite bridges: Part 10: code of practice for fatigue; 1980] but a welding failure generated unexpected stresses and weakness on the welding region which generated fatigue and the final fracture.
Furthermore, Kenyon and Tschirner (2000) did not adopt a counterbalanced design; therefore, practice or fatigue effects may have occurred during the two tests.
Due to their complexity and extensive use, SBT assemblies are vulnerable to failure due to poor installation practice, vibration fatigue or the lack of adequate inspection and maintenance programmes.
This analysis controlled for potential confounding influences of practice or fatigue effects.
In all types of CM practices general problems (as coded in the ICPC) were diagnosed more often than in mainstream general practice, especially fatigue, allergic reactions and infections.
A survey of 470 health care personnel from various clinical areas demonstrated their poor knowledge and practice regarding fatigue assessment and management [ 20].
There have also been 3 reports on the adolescent population [ 12- 14], and one each on depression among patients attending chronic disease clinics and patients attending family practice with fatigue as a reason for the encounter (RFE) [ 15, 16].
The randomised crossover design of the study ensured that any differences between interventions were not due to the effects of the sequence in which they were performed or differences in the skills, amount of practice, or fatigue of participants.
This dynamic tracking was implemented to take into account variations during the trials, for example, those resulting from practice or fatigue, and to insure an equal distribution of positive and negative feedback throughout the trials.
