Secondary stress. A secondary stress is any stress in the structure which is not a primary stress or peak stress. Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards.
Two groups of ground nesting bees commonly. found in Michigan are bumble bees and. burrower (andrenid) bees. Bumble bees are. easily recognized by their large, robust, hairy, black and yellow (sometimes orange) bodies. Bumble bees live in colonies of several. hundred individuals, but only the queens.
For honey bees, the male is the drone, the queen and workers are all female. Drones' eyes are almost twice the size of a worker bee's eyes and their body is stockier and heaâ¦vier than a worker, but not as big as a queen. Despite their heavier weight, drones can fly fast enough to catch up with a queen.